import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.classic.Session;

public class HibernateUtil {
    private static final SessionFactory sessionFactory;
 
    static {
        try {
            sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            throw new ExceptionInInitializerError(ex);
        }
    }
 
    public static Session getSession() {
        return sessionFactory.openSession();
    }
}